And Gentoo won't boot. I've tried the Gentoo Handbook's method with grub 2, and I've tried [url="https://wiki.gentoo.org/wiki/UEFI_Dual_boot_with_Windows_7/8"]the wiki's method using refind[/url] to no avail. Both lead to booting windows in UEFI mode and a kernel panic in legacy BIOS mode. Even after installing refind, in legacy mode it goes to a grub menu (followed by kernel panic), as if refind doesn't exist. Can someone help?[/url]

can you post a picture of the panic?
what install media did you use? when the install media was booted were you in efi mode?
How did you make the kernel? genkernel or manual? boot the installcd/usb, mount the gentoo partitions, run

guessing -- windows is installed on one disk in uefi mode
gentoo is installed on another disk in legacy bios mode with grub 2 installed to the MBR of the second disk
the plan is to boot to "BIOS" and select uefi or legacy to select which os would boot?_________________Defund the FCC.

The computer came out of the box with windows installed in uefi mode. In uefi mode, even now, with refind supposedly installed, the computer doesn't seem to know refind is there; it just boots into windows.

Quote:

guessing -- windows is installed on one disk in uefi mode
gentoo is installed on another disk in legacy bios mode with grub 2 installed to the MBR of the second disk
the plan is to boot to "BIOS" and select uefi or legacy to select which os would boot?

It's a laptop with only one disk.
The plan was nowhere near so well thought out. I bought a new computer, noticed that since the last time I installed gentoo something called uefi was invented, and thought I could somehow make a selection menu like I had on my previous computer with bios and grub legacy.